Scientists are starting to understand more about the small heart muscle fibers that Da Vinci showed in his illustrations over ...

Do right and left seem backward? That's because you're looking at an illustration of somebody else's heart. To think about how your own heart works, imagine wearing this illustration on your chest.

This Valentine’s Day, as we exchange stylised hearts in celebration of love, we might pause to remember that the power of the ...

In the Step Thru below, see the complicated path the blood takes as it moves in and out of the heart. Do right and left seem backward? That's because you're looking at an illustration of somebody ...